Thermostatic fuel-valve.



E B. HANDS.

T'HERMOSTATIC FUEL VALVE.

APPLICATION FILED SEPT. 22. 1916.

1 fiWflHUQW Patented Feb. 26, 1918 Witnesses 10s, or snvnron'r, LOUIS t: uosra'rrc runn-vanvn.

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Specification of Letters Patent.

Patented JFeh, 2d, rm

hpplication filed September 22, 1916. Serial No. 121,648.

To all whom it may concern:

Be it known that l[, Enema 1B. HANDS, a citizen of the United States, residing at Shreve ort, in the parish of Caddo and State Louisiana, have invented a new and useful Thermostatic Fuel-Valve, ct. which the following is a specification.

The object of the invention is to provide a simple and eficient construction of valve adapted to he used in connection with the solene feed of a carburetor under such conditions as will insure an economical feed of the fuel when the running conditions of the engine are tavorahle tor a reduction in richness of the mixture, whereas the reverse action is edected when an increased richness of the mixture is necessary, said operation heing edected automatically and without requirlng the attention or manipulation of the operator.'

Further objects of the invention will appear as the description proceeds, it being understood that changes In the precise emhodiment of the invention herein disclosed,

till

can he made within the scope of what is claimed, without departing mthe spirit of the invention. v

In the accompanying drawings:-

Figure l is a view of the valve construetion embodying the invention arranged in operative position in a carhureter a portion e which is illustrated.

Fig. 2 is a detail sectional view of the vfilge onlthe plane indicated by the line 2-2 o Tn dn arial here of a shank or stem 11 is arranged an axially movahle needle valve or pin 12 having the usual conical or tapered p 13 for contact with the valve seat 14. S w the stem is tonmed a laterally opening cavity or recess 15, in communication with the here 1d and forming hy its upper and lower walls shoulders 18 and N, and projecting into said recess or cavity are the a he of a looped thermostatic element 118, the upper a thereot preferably hein to the upper shoulder or we 16, while the lower arm is pivotally and slidahly connected with the upper end of the valve or pin 12. Any smtahle means oi connection may he employed, that which is illustrated in the drawings consisting ot a headed stud 19 on the upper end ot the valve or pin, and a slot 2d termed in the lower a w of the therm atic clement, said i a u h (if the $l3llldl.

The recess 15 opens laterally or to one side, and the bore 10 extends from one end of the stem 11 to said recess, there being a yoke portion connecting those portions of the stem at opposite sides of said recess.

The device can he so arranged with respect to any suitable carhureter, that the thermostatic element lies in-the path of heated air flowing into the carburetor from a suitable heater, and so that the needle valve controls a valve port having the seat M. The parts of the improved valve should be adjusted so that when the carburetor is cold the valve will he held hy the thermostatic element to give a full opening of the valve port whereas when the carburetor is hot or the intake of air is hot, the valve will he in a position to give the mium amount of feed of the fuel. Under them circumstances the adjustment of the parts should he etfected while the carhureter is heated, and

after this adjustment has been edected no further attention need he paid to the device. The limits of movement of the operatin arm of the thermostatic element are d by the shoulders or steps 16 and 17 and when the valve is operated to-provide tor starting the engine, the carhureter then heing cold, a vfull opeg of the valve port will he secured and as the carhureter heats, the thermostatic element will gradually advance the valve until it reaches the limit of closing movement to which the device has been adjusted-remaining, in such position until the cooling or partial cooling of the carhureter induces a reverse movement at the thermostatic element.

llt will he understood that u simplicity of the device, it may he applied economically to many of the ordinary r of carhureters, and the thermostatic eement and other moving parts heing entirely housed hy the carhureter, there is no u hility of accidental displacement or isarrangement, and the parts once correctly adjusted will operate as described without lltltll further attention on the part of the opin one side pad its s d provid g opposite shoulders at an 1 le to said re said having a here r wding lenllld I tudilly from one shoulderto e end thereof, a needle valve slidable through said In testimon that I claim the foregoing bore and projecting beyond said end of the as my own, I ave hereto'afiixed my slgna- 10 51361511 and linto saihdmreglelss, that elllld of the ture in the presence of two witnesses. nee e va ve wit e recess aving a 5 headed stud, and a looped thermostatic ele- EDGAR HANDS ment having one terminal secured to the Witnesses: other shoulder and havin its other terminal RUDOLPH R. WILSON, slotted and engaging sai stud. A. A. Gammon. 

